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Canavesite Mineral Data

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General Canavesite Information

Help on Chemical  Formula: Chemical Formula: Mg2(CO3)(HBO3)•5(H2O)
Help on Composition: Composition: Molecular Weight = 258.51 gm
   Magnesium  18.80 %  Mg   31.18 % MgO
   Boron       4.18 %  B    13.47 % B2O3
   Hydrogen    4.29 %  H    38.33 % H2O
   Carbon      4.65 %  C    17.02 % CO2
   Oxygen     68.08 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg2(CO3)(HBO3)•5(H2O)
Help on Environment: Environment: Found in fractures in ludwigite and magnetite skarns.
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Vola Gera tunnel, Brosso iron mine, Canavese district, Piedmont, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Canavesite + Pronunciation Say CANAVESITE

Canavesite Image

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Comments: White acicular crystals of canavesite on matrix.
Location: Brosso Mine, Ivrea, Piedmont, Italy. Scale: Picture size 9 mm.
© Thomas Witzke / Abraxas-Verlag

Canavesite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =3.8108:1:3.5545
Help on Cell Dimensions: Cell Dimensions: a = 23.49, b = 6.164, c = 21.91, Z = 12; beta = 114.91° V = 2,877.27 Den(Calc)= 1.79
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.54(1), 8.12(0.4), 4.56(0.21),3.11(0.2), 7.53(0.2), 7.8(0.2), 3.33(0.1), 3.69(0.1),

Physical Properties of Canavesite

Help on Cleavage: Cleavage: {h0l} Distinct, {h0l} Distinct
Help on Color: Color: White.
Help on Density: Density: 1.8
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Rosette - Bundled tabular aggregates resembling rose flower petals.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Canavesite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.067 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.073 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2764,KPDmeas= 0.2748,KC= 0.2576
Ncalc = 1.46
Help on Optical Data: Optical Data: Biaxial (+), a=1.485, b=1.494, g=1.505, bire=0.0200, 2V(Calc)=86, 2V(Meas)=large.

Calculated Properties of Canavesite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.87 gm/cc
note: Specific Gravity of Canavesite =1.80 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PECanavesite = 0.65 barns/electron
U=PECanavesite x rElectron Density= 1.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Canavesite is Not Radioactive

Canavesite Classification

Help on  Dana Class: Dana Class: (17)Compound Carbonates
  (17.01)with miscellaneous formulae
  (17.01.08)Dana Group Canavesite Mg2(CO3)(HBO3)•5(H2O) P 2/m 2/m
Help on  Strunz Class: Strunz Class: 06.HA.50 06 - BORATES
  06.H - Unclassified Borates
  06.HA -Unclassified borates
06.HA.50 Canavesite Mg2(CO3)(HBO3)•5(H2O) P 2/m 2/m

Other Canavesite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Canavesite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 06.HA.50





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